Review on 🔋 Miboxer C4-12 Universal Smart Rechargeable Battery Charger: Intelligent 4-Slot Output Li-ion 4X3A, Ni-MH/NiCd 2X1A for 18650, AA, C, 26650, 16340 (RCR123), 14500, and More (Excludes LiFePO4) by Becky Taylor

Very easy to use, fast charging and charges almost all types of small round batteries. Holds batteries in place better than my cheaper XTAR 4 slot charger and works much better to properly hold protected batteries; On the XTAR vc4plus, protected batteries go out of balance unless I install them very carefully and only charge two at a time. With Miboxer I can easily charge 4 batteries at the same time and it's easy to put them back. Very sensitive to even minor shocks, so if you try to just toss it in your backpack and walk away, it will gradually stop working properly. Need some kind of impact protection when you're out with it. If you live near the ocean or in the tropics with high humidity, the air can cause this charger to rust. Mine has rusted quite badly after a year and needs to be replaced. I'll probably buy another one, although I'd love to find a cheaper one with less fancy modes as I don't need them. This is highly recommended and works great with these two exceptions.